netdev - Re: extending ndo_add_rx_vxlan

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Date:	Mon, 28 Oct 2013 13:24:13 -0700 (PDT)
From:	Joseph Gasparakis <joseph.gasparakis@...el.com>
To:	Or Gerlitz <or.gerlitz@...il.com>
cc:	Joseph Gasparakis <joseph.gasparakis@...el.com>,
	Or Gerlitz <ogerlitz@...lanox.com>,
	John Fastabend <john.r.fastabend@...el.com>,
	Yan Burman <yanb@...lanox.com>,
	netdev <netdev@...r.kernel.org>,
	Stephen Hemminger <stephen@...workplumber.org>
Subject: Re: extending ndo_add_rx_vxlan_port



On Mon, 28 Oct 2013, Or Gerlitz wrote:

> On Mon, Oct 28, 2013 at 7:59 PM, Joseph Gasparakis
> > On Mon, 28 Oct 2013, Or Gerlitz wrote:
> >> On Mon, Oct 28, 2013 at 1:44 AM, Joseph Gasparakis wrote:
> 
> >> > VXLAN implementation is not done like VLAN. VLANs are stacked on top of
> >> > real interfaces and what you are saying makes sense. VXLAN however is
> >> > using ip[6]_tunnel_xmit, and this is why we need to notify all the
> >>
> >> As the name of the ndo you added ndo_add_rx_vxlan_port suggests -- HW
> >> needs that for RX offloads. So basically, what I am saying is: in a
> >> similar manner that we already program the NIC "over which" the vxlan
> >> instance is set to listen on the multicast address which is associated
> >> with that vxlan segement, lets give them a hint that packets arriving
> >> on this group are vxlan ones, so they can use it for programming
> >> steering rules.
> >
> > Why don't you write up some code so everyone has something to look at?
> > Then we can see what makes sense to do in terms of the existing or new ndos.
> 
> sure, code talks, indeed, still, looking on net-next, for the current
> ndo there's no in tree consumer unless I miss anything, did I?
> 
> Or.
> 

I don't think you missed anything. My patches for the i40e are currently 
in our trees and making their way to netdev. It will be very soon.

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